A single shot of espresso (about 1 ounce or 30 milliliters) typically contains around 63 to 75 milligrams of caffeine on average. This amount can vary depending on factors such as the type of coffee bean, roast level, grind size, water temperature, and brewing time, with caffeine content ranging roughly from 30 mg up to 100 mg per shot in some cases
. Espresso is more concentrated in caffeine per ounce compared to regular drip coffee, which has about 12 to 16 mg of caffeine per ounce, but a standard 8-ounce cup of coffee usually contains more total caffeine (around 95-96 mg) than a single espresso shot
. The quick consumption of espresso often makes its caffeine effects feel stronger despite the lower total caffeine compared to a full cup of brewed coffee
. In summary, expect about 63-75 mg of caffeine in a typical single shot of espresso, with some variation depending on preparation and bean characteristics.
